removed commented code
use the Table comparision classes for tests
add better inspects for the new table comparison methods
use java_send to suppress a JRuby ambiguous method warning
Merge branch 'master' of github.com:jazzido/tabula-extractor
fixes one-off error; clarifies with comments,methods 0 v. 1-indexed page numbers; s/and/&&/ where appropriate

Conflicts:
	lib/tabula/pdf_dump.rb
fix width bug in table_guesser
fix Rectangle2D#unionize bug because Java is annoying
undo prev table_guesser change, reject guessed tables with area 0
bug/typo in Line2D::Float#horizontal?
Merge branch 'master' into text-extractor-refactor

Conflicts:
	lib/tabula/pdf_dump.rb
saving
stealing from @jeremybmerrill `spreadsheets`
merging the text-extractor-refactor changes and the stuff @jazzido STOLE from this branch :)
adds SpreadsheetExtractor class that basically just works